Wednesday, Nov 21, 2012 - 6:30 AMAfter 30 years off the Navajo Nation, Rosie Sekayumptewa returned to the homestead where three generations of her family have lived. She found the beauty and serenity she remembered-and the scarcity that had shaped her childhood. In Sekayumptewa's corner of the reservation, there is no access to safe, clean water. D